This article describes a novel effort in New York City, the Learning Partners Program, which matches veteran principals with two or more newer ones. In 2014-15, the first full year of the effort, the city's Department of Education put 73 of the city's more than 1,800 schools into 23 groups of threes and one group of four. Every group comprised one…

Being a principal was the most demanding job the author ever had. He worked hard, mostly in isolation. Like most principals, he struggled to manage the position's political and bureaucratic necessities in order to concentrate on what he thought was the fundamental work of schools: teaching and learning. He struggled to continue to learn and grow…